Durable neutralizing antibodies after remote smallpox vaccination among adults with and without HIV infection

Document Type

Journal Article

Publication Date

2-1-2007

Journal

AIDS

Volume

21

Issue

4

DOI

10.1097/QAD.0b013e32802f7d7c

Abstract

The only US licensed vaccine with established efficacy against smallpox, Dryvax, is contraindicated for HIV patients. Detectable smallpox-neutralizing antibodies are still present among US adults. This study compared vaccinia-neutralizing antibody titers between 20 HIV-infected and 20 uninfected veterans matched for age and military entry. Vaccinia-neutralizing antibodies were detected in 95% HIV-infected and 100% uninfected veterans; 40% HIV-infected and 70% uninfected adults had protective titers. Therefore, after robust vaccination, neutralizing antibodies are maintained for prolonged times despite CD4 cell depletion. © 2007 Lippincott Williams & Wilkins, Inc.

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